should i be worried installing these two? what does it mean though?
(these are captured from Pop! OS software manager)
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
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The first one allows Flatseal to edit the permissions of Flatpak apps including itself.
System folder access allows a app to read the filesystem. (But not system internals)
System settings access allows the app to change settings
So the only concerning one is Xournal. However, I happen to know that it doesn't support XDG portals which is how apps ask for permissions to files so it needs full file access. As for the system settings I have no idea.